RAYMOND OF SABUNDE, or SABIENDE (fl. 1434)  , Spanish scholar, was a teacher of medicine and philosophy and finally regius professor of theology at Toulouse . His Liber naturae sive creaturarum, &c . (written 1434-36), marks an important stage in the history of Natural Theology . The book was directed against the position then generally held, that reason and faith, philosophy and theology were antithetical and irreconcilable . Raymond declares that the book of Nature and the Bible are both Divine revelations, the one general and immediate, the other specific and mediate . The Editio Princeps of the book, which found many imitators, is undated but probably belongs to 1484; there are many subsequent editions, one by J . F. von Seidel as late as 1852 . In 1595 the Prologus was put on the Index for its declaration that the Bible is the only source of revealed truth . Montaigne (Essays, bk. ii. ch. xii., " An Apologie of Raymond Sebond ") tells how he translated the book into French and found " the conceits of the author to be excellent, the contexture of his work well followed, and his project full of pietie . . . . His drift is bold, and his scope adventurous, for he undertaketh by humane and naturall reasons, to establish and verifie all the articles of Christian religion against Atheists." See D . Beulet, Un Inconnu celebre: recherches historiques et critiques sur Raymond de Sabunde (Paris, 1875) .